Questions

Calculate the time period (in seconds) of a sound wave of wavelength 2m travelling with a speed of 250 m/s.

Which of the following statements about DNA replication is true?

Improve the bracketed part of the sentence We (should had) the confidence that we will surely succeed one day.

Monosaccharide which is responsible for the sweet taste of fruit?

The term 'Dumping' refers to

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

The first working steam­ powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale­ model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full­ scale, self ­propelled mechanical vehicle or automobile in about 1769; he also created a steam­ powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam ­powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam ­powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore.

What is meant by "Sentiment" in the context of the given paragraph?

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

(of a cat) to make a low continuous vibratory sound expressing contentment.

What is microprocessor?